Finding the Fourth Proportional to 98,115.49, 147,216.57 and 76,119.94
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Solution
The fourth proportional to 98,115.49, 147,216.57 and 76,119.94 is: 114,213.53
Step by Step Solution
- Step 1: Write the proportion equation
98,115.49 : 147,216.57 = 76,119.94 : x - Step 2: Convert to fraction form
98,115.49/147,216.57 = 76,119.94/x - Step 3: Cross multiply
98,115.49x = 147,216.57 × 76,119.94 - Step 4: Simplify right side
98,115.49x = 11,206,116,475.41 - Step 5: Solve for x
x = 11,206,116,475.41/98,115.49 - Step 6: Final answer
x = 114,213.53
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.